Yes it appears that way. I wasn't expecting the trees to cause the effect they did. It happened a lot closer then I thought it would. In reality I can not fly it further then 500m or 1640ft legally without a spotter.
I was surprised at the short distance I lost signal strength ( 1.5km less then 1 mile). I was over a lake but I guess the tree's cut signal strength a lot more then I thought they would just as I rounded a bend at about half way out the signal started to fade fast.